Work holder attachment for sewing machines



July 20, 1954 gc 2,684,041

WORK HOLDER ATTACHMENT FOR SEWING MACHINES Filed Nov. 8, 1951 4Sheets-Sheet 1 ,FIGJ.

INVEN TOR. RlGl-IARIJ E. TIOE N'TORNEYS July 20,, 1954 R E TICE2,684,041

WORK HOLDER AJ'ZAQHMENT FOR SEWING MACHINES Filed Nov. 8, 1951. 4Sheets-Sheet 2 INVENTOR. RIG HARD E. T'IOE wuiimmm ATTORNEYS July 20,1954 Filed Nov. 8, 1951 R. E. TICE 2,684,041

WORK HOLDER ATTACHMENT FOR SEWING MACHINES fll ssheet s O O O w //oz 4%A24 9 /Z2 IIIIIIII INVENTOR.

IRIGWARW E. TIGE Tmm y 1954 R. E. m5 2,684,041

WORK HOLDER ATTACHMENT FOR SEWING MACHINES Filed Novv 8, 1951 4Sheets-Sheet 4 INVENTOR.

RICHARD E. TIGE MTTRNE'W Patented July 20, 1954 UNITED STATES PATENTOFFICE WORK HOLDER ATTACHMENT FOR SEWING MACHINES Richard E. Tice,Dallas, Tex., assignor to Texas Machine Attachment Company, acorporation of Texas Application November 8, 1951, Serial No. 255,467

Claims. 1

Thus, it is the primary purpose of this invention to eliminate thepossibility of human error and inadvertence on the part of a Sewingmachine operator engaged in stitching pockets on garments, formingspecial designs on garments or other articles or ancillary sewingoperations and incidentally to reduce production costs and enable anincrease in the rate of production to be realized.

Many articles of apparel, such as jeans, aprons or the like and variousother articles made from textile materials are decorated with designsstitched therein. In present practice, it is necessary to expendconsiderable time and expense inculcating inexperienced sewing machineoperators to move a work piece, such as a garment or other article, inthe correct path of movement beneath the reciprocating instrumentalitiesof the sewing machine, so that the design is properly stitched on thework piece. The work piece must be manually turned and controlled sothat the proper portion thereof is correctly located for penetration bythe sewing instrumentalities.

For example, in forming a horseshoe design on a pair of jeans, asillustrated in Figure 7 of the accompanying drawings, it is necessary toemploy at least three operators to form the design on a single garment.And the similarity of the design on a number of garments depends uponthe skill of the operators.

In forming the design, one of the operators initially traces the designon the garment. This is conventionally done by sprinkling a powderysubstance over a plate, which is laid on the portion of the garment tobe designed and it is formed with a cutout portion of horseshoe shape.The next operator positions the garment on the work table of a sewingmachine beneath the sewing instrumentalities and manually moves thegarment, being guided by the outline of the design on the garment.Considerable skill and experience are required in carrying out thisoperation, since it is necessary for the completeness and quality of thedesign that a certain spacing of the stitching and a certain number ofstitches per inch be provided. Therefore, the garment must be moved atthe proper time with the exercise of considerable dexterity and care sothat it is properly positioned beneath the sewing instrumentalities. Inthe last step in the process of forming the exemplary horseshoe design,the third operator uses a bar tacking machine and bar tacks the open endof the horseshoe design.

It can thus be realized that the process of forming a design on garmentsor other articles entails the services of several operators, who must bespecially trained for their particular task in the operation and whomust possess a considerable degree of skill and speed.

With the instant invention, one operator can perform the entireoperation, which does not depend upon the skill or speed of the operatorbut which is automatic and therefore insures uniformity of anyparticular design on the articles. The purpose of this invention,therefore, is to provide an automatically movable work holder or table,which ascribes a predetermined movement beneath the sewinginstrumentalities in accordance and conformance with the outlines of aparticular design. The initial tracing of a design on the work piece,the manual moving of the work piece and the subsequent bar tacking areeliminated. An inexperienced operator can turn out designed garmentswithout any possibility of error in the design and with a considerablereduction in time and production costs.

A further object of this invention is to provide a simply constructed,compact and easily movable work holder, which can be attached to aconventional sewing machine, without necessitating modification of thesewing machine, and which can be driven by a direct drive from theconventional gear box on the head of the sewing machine.

Another object of this invention is to provide operating elements whichsimultaneously reciprocate in rectilinear paths of movement and at rightangles to each other, the work holder being supported by the elements insuch a manner that it is moved by the compound movement of the operatingelements.

A further object of this invention is to provide cams for moving theoperating elements, the cams being designed and formed with cam tracksin accordance with the desired path of movement of the work beneath thestationary sewing instrumentalities dependent upon the outline of aparticular design.

A still further object of this invention is to provide a means formoving a work holder, so that the path of movement of the work holder 3is identical with the contour and outline of a particular design.

These and ancillary objects and structural features of merit areattained by this invention, the preferred embodiment of which is setforth in the following description and illustrated in the accompanyingdrawings, wherein:

Figure l is a front elevational view of conventional sewing machine towhich is attached an automatically movable work holder, constructed inaccording with this invention;

Figure 2 is a perspective view of the work holder or attachment per se;

Fi ure 3 is a top plan view of the operating mechanism for the workholder;

Figure 4 is a longitudinal vertical sectional view taken on line 4-4 ofFigure 3;

Figure 5 is an enlarged top plan view of the operating mechanism for thework holder, with parts of the operating elements shown in section toillustrate the guide means thereof;

Figure 6 is a transverse sectional view taken on line 66 of Figure 3;

Figure 7 is a fragmentary enlarged top plan view of the work holder,with a garment clamped thereon and depicting the exemplary designstitched therein;

Figure 8 is a top plan view of one of the cams, which actuates one ofthe operating elements and illustrating the cam track formed thereinespecially to produce the horseshoe design;

Figure 9 is a bottom plan view of the companion cam, and,

Figure 10 is a perspective view of the operating elements or slidemembers.

Referring now more particularly to the accompanying drawings, andinitially to Figures 1 and 2, the reference numeral is generallydesignates a work holder, which includes a fiat plate 2. The plate !2 isadapted to movably overlie the work table is of a conventional sewingmachine I6. The plate is formed with a circularcut out portion oropening i8, which is adapted to underlie the reciprocating sewinginstrumentalities 26 of the machine and over which a work piece isplaced. The work piece is clamped or held in position over the opening[3 by a ring or hoop 22, which possesses an internal diametersubstantially equal to the diameter of the opening !8. The hoop 22 iscarried at the inner end of an arm 24, which is offset from the hoop andwhich is provided with laterally extending journals 26, the journalsbeing journaled in upstanding spaced bearing blocks 28, which aremounted on the plate l2 at the beveled edge thereof.

The hoop 22 is spring urged into clamping engagement with the plate l2so as to securely retain a work piece, with the portion of the workpiece to be worked on overlying the opening iii. A coil spring 39 istherefore provided and is vertically disposed between the outer end ofthe arm 24 and the outer end of the arm 32, the outer end of the armbeing oifset from the inner end and underlyingthe arm 24. The spring 3%has its upper end encircled about a lug 34, which depends from theunderside of the arm 2a to anchor the spring on the arm 24. The lowerend of the spring is encircled on a bolt 36, which is threadinglydisposed through the outer end of the arm 32 and which is adjustable toprovide means for the convenient removal of the spring 36!.

The plate 12 is supported by upstanding supporting blocks 38 and 40which are secured at their upper ends to the underside ofthe'plate it 4aU its opposing side edges. A base plate 42 supports the blocks 38 and40, with the lower ends of the blocks being fixed to the upper surfaceof the base plate at its opposing ends. The inner end of the arm 32 isaffixed by fastening members 44 to the supporting block 38.

The hoop 22 is raised from clamping contact with the table I2 againstthe urgement of the spring 30 to enable a work piece to be inserted andremoved from between the hoop and plate 12 We release mechanism 46. Therelease mechanism is preferably controlled by a foot pedal (not shown)located for convenient operation by the machine operator. The releasemechanism includes a vertically disposed roller 48 which rides on theupper surface of the arm 24 above the spring 30 and which is supportedin a vertical plane by a shaft 50. The shaft is journaled in an offsetbearing 52 carried by a block 54. An operating rod 56 is verticallydisposed through the block for-moving the block in a vertical plane, therod being moved by a horizontally disposed operating rod 58. The rod 58is journaled in bearing 60 and is actuated by an operating linkage 82from the foot pedal.

The operating rod 58 simultaneously controls the release of the workpiece from the plate 12 and through a clutch 64 controls the drive shaft66 for the sewing machine. Also, through a linkage 58, the operating rodeffects the lifting and lowering of the sewing instrumentalities 20.

Accordingly,'when the foot pedal is depressed by the machine operator,the arm 2d is moved downwardly on its journals 25 to lift the hoop 22from contact with the plate l2 and permit the work piece to bewithdrawn. Simultaneously,

the sewing instrumentalities or needles 20 are lifted and the clutch isthrown in to interrupt the rotation of the operating shaft 66 for themachine.

The base support plate 42 is movably supported by a housing 10, which isT-shaped and which includes a bottom wall 12, upstanding side walls'M-andcpposed end walls'lS. A cover or top plate '58 is detaohablymounted on the upper ends of theside and end walls and hanger rods 86extend upwardly from the top plate and are suitably connected to theunderside of the work table 14 of the machine, whereby the housing issuspended from the work table and is mounted in an out of the wayposition, so as notto interfere with the movements of the machineoperator.

A pair of supporting bars 82 and 8d are fixedly mounted in parallelismon the bottom wall 72 of the'housing It, the bars extendinglongitudinally of the housing and being spaced transversely apart toslidably receive therebetween an operating element or slide plate 86.The plate 86 is fiat and has a depending base portion 88, which extendsalong the longitudinal center line thereof and is aflixed thereto byfasteners 89.

Rollers 96 are vertically mounted on the inner sides of the supportingbars 82 and 84 and are arranged in longitudinally spaced fashion on thebars. The rollers $8 engage the underside of the plate 36 at theopposing marginal side edges thereof and cooperate with horizontallydisposed rollers 92 .to slidably support the plate in the housing. Therollers e2 are mounted on upstanding shafts 93, which are fixedlymounted in the upper edges of the supporting bars. The rollers 92 engagethe opposing side edges of the plate and constrain the plate fromlateral movement, the plate being slidably held by the rollers formovement in a rectilinear path longitudinally of th housing. Thevertically arranged rollers 96 space the plate out of contact with thebottom wall of the housing and slidably support the plate during itsmovement between the supporting bars.

A pair of parallel cross bars 94 and 96 are transversely mounted on theplate 86 adjacent the outer end thereof and are spaced apart for theslidable reception of the base plate 42 of the work holder. The baseplate 42, as seen in Figure 2, is slidably disposed through elongatedslots 98, which are formed in the opposing side walls Id of the housinI0 and are in alignment.

The ends of the cross bars 94 and 96 overlie the bars 82 and 84 and are,of course, spaced above the bars, as seen in Figure 4. Seats I 00 areformed in the upper edges of the cross bars, above the bars 82 and 84,and rollers I92 are mounted in the seats and horizontally arranged forengagement with the base plate 42. The opposing side edges of the baseplate are formed with longitudinal grooves or tracks I54, within whichthe rollers I512 are slidably disposed, so that the rollers slidablysupport the base plate above the slide plate or operating element 86.

The slide plate 86, through th cross bars, which are securely fixedthereto, moves the base plate 42 longitudinally of the housing, as theslide element is rectilinearly reciprocated. Means is provided forsimultaneously moving the base plate 42 transversely of the housing and,for this reason, the base plate is slidably supported by the rollers 12.The movement of the base plate s2, transversely of th housing, isproduced by a slide plate or operating element I06, which isreciprocated in a rectilinear path of movement, transversely of thehousing and at right angles to the path of movement of the slide element85, which is reciprocated longitudinally of the housing.

The slide plate I06 is formed at its opposing sid edges withlongitudinally extending grooves or tracks, which are coextensive inlength with the slide plate. Rollers I I0 are disposed in horizontalplanes and supported by a supporting plate H2, which extendstransversely of the enlarged end of the housing and has its opposingends fastened by screws M4 to ledges IIEl, which are formed on the innersurfaces of the opposing side wall 14. The rollers IIG, as seen inFigure 4, are spaced above the upper surface of the supporting plate H2by spacers H8 and are disposed in the grooves I08. An elongatedconnecting bar I20, which forms an integral part of the operatingelement I66 to produce the reciproeating motion of the work holdertransversely of the housing, is fixed at one end to the slide plate Hitand extends laterally therefrom. The connecting bar I243, islongitudinally disposed in the housing and is provided at its outer orfree end I22 with longitudinally extending tracks 52 1, that are formedin the opposing side edges of the bar. The tracks I24 are formed byunder cutting the side edges of the bar I26 at the outer end thereof, asseen in Figure 5. Horizontally disposed rollers I26 are mounted on theupper surface of the base plate 42 by means of upstanding shafts I28,the rollers being spaced above the base plate [i2 by spacers I30concentrically disposed on the shafts. The rollers are disposed inspaced side by side relation and are engaged with the tracks I24, asseen in Figure 3.

Thus, as the slide plate I06 is reciprocated transversely of thehousing, the plate being restrained from lateral movement by the rollersIII? and being slidably supported thereby, the bar I2Il, whichconstitutes a lateral extension of the plate IE6, is moved transverselyof the housing and moves the base plate 42 transversely of the housingby means of the rollers I 25, which transmit the movement of the bariii! to the base plate. The rollers and accommodating tracks I24 areprovided to enable the base plate to be moved longitudinally of thehousing by the slide plate 86, simultaneously with the transversemovement of the base plate.

Thus, a compound movement of the work holder I E! is produced, the workholder being simultaneously reciprocated longitudinally and transverselyof the housing.

A'drive shaft 32 is vertically mounted in the housing 14, at the centerof the enlarged end thereof, with the lower end of the shaft beingdisposed in a bearing E34. The bearing I34 is attached to the bottomwall 52 of the housing and supports the shaft, which extends through theremovable top wall 78 of th housing and is adapted to be attacheddirectly to the gear box (not shown) customarily mounted on the head ofthe machine and drivingly connected to the operating shaft 66 therefor.

Of course, other means may be employed for actuating the shaft I32,consisting either of a drive means independent of the shaft 86 orsuitable transmission means drivingly connecting the shaft 65 to thedrive shaft i232.

A collar E35 is fixedly circumposed on the shaft I32 above the bearingI34 by a radial set screw 38. The collar is formed at its upper end withan annular flange t ll], which seats a cam I 22. The cam M2 iseccentrically mounted on the shaft I32 by means of an off-center openingM4 formed therein and is secured to the flange Mil by a screw ME. Thehead of the screw is disposed in the counterbore I48 of the bore H50formed vertically through the cam, adjacent the opening I44, and theshank of the screw is received in a threaded bore i5? formed verticallyin the flange. A second or top cam $54 is provided and is fixedlysuperimposed on the cam M2. The cam 55 i is formed with a verticalopening I56 to receive the shaft I32 and is formed with a verticalopening I58 to receive a connecting screw E66. The opening E58 iselongated and counterbored as at I62 to seat the head of the screw, thescrew being disposed in a threaded bore I64 formed in the upper surfaceof the lower or first cam I42. The opening I58 is elongated, so that thecam I5 i can be adjusted relative to the cam M2, which are fixedtogether by the screw ifiii so that they rotate in fixed relation.

The cam I42 is formed on its lower face with a cam track [64, withinwhich a cam follower iiiii is disposed, the cam follower H38 beingvertically mounted on the inner end of the slide plate or operatingelement 25. A cam groove I53 is formed in the upper surface of the camI54 and a cam follower I'Iil is engaged therewith, the cam follower iifldepending from the slide plate I06. In this respect, an elongatedaxially extending slot I12 is formed in the slide plate 106, so that theplate can reciprocate over the drive shaft I32 and at one end of theslot, a recess PM is formed in the upper face or surface of the plate,the cam follower depending from the wall of the recess and beingdetachably mounted in the plate. Thus, the recess is provided forsupporting the cam follower in a detachable manner, the upper end of thecam follower being threadingly disposed through :-a threaded opening inthe wall of the recess portion.

Thus, it can be seen that basically the operation involves the rotationof the drive shaft I32, which rotates the cams I42 and I54. The camfollowers I66 and I18 translate the rotary movement of the cams intosimultaneous reciprocation of the slide plates or operating elements 86and I88, which move in rectilinear paths and in right angular planes,the plate 86 moving longitudinally of the housing and the plate I86:traveling transversely of the housing. The operating element 86supports the base 43 of the work holding plate I2 by means of therollers I82 and the operating element I86 is connected to the base bythe rollers I26. The plate I2 is moved longitudinally and transverselyunder the reciprocating needles 28 of the sewing machine, so that theportion of the work piece that overlies the opening I8 in the plate I2is moved in a sub stantially rotary movement to advance it.

Obviously, the path of movement of the work holding plate i2 and,therefore, the movement of the work piece, as it is penetrated by theneedles, depends upon the design of the cam grooves and the relativerelation of the cams to each other. The grooves in the cams are formedin conformance with a particular design to be stitched on the workpiece.

Considering the exemplary horseshoe design, illustrated in Fig. '7, thework piece must be moved in similar U-shaped paths but in a manner sothat the needles form a certain number of stitches per inch and so thatthe stitches are spaced apart in a predetermined manner. The outerU-shaped line of stitches H6 is concentric to and spaced radially fromthe inner line of stitches I18 and the end lines I88 and I82 whichconnect the outer ends of the stitching I16 and H8 are bar tacked. Thelatter lines of stitching are produced by a conventional bar tackingmechanism (not shown) which actuates the needles 28 to produce the bartacking, as the work piece moves in a straight line. The actuatingmechanism that moves the needles to bar tack the outer ends of thehorseshoe design is timed with the movement of the work holding plateI2.

The stitching commences at the point A and the foot pedal of the releasemechanism is released by the operator, after the work piece has beenplaced on the plate I2 over the opening I8.

Upon release of the foot pedal, the spring 38 biases the hoop 22 intoclamping engagement with the plate I2 to securely clamp the work pieceover the opening IS. The operating shaft 68 is simultaneously rotated,as the clutch is thrown in, thus producingsimultaneous rotation of theshaft I32. The needles 28 are lowered for penetration of the portion ofthe workpiece within the hoop 22 and the work holder I8 is moved.

The work holder first moves from A to B and the timed mechanism forproducing the bar tack ing functions to bar tack from A to B, producingthe line of stitching I88. The work holder then moves in an are from Bto C, with the needles penetrating the work piece to form the innerstitches I18. From C, the work holder moves in a straight line and thestitches I82 are formed, the bar tacking mechanism being in operation atthis time and until the needles reach point D. The work holder is thenmoved in an are from D to A and the outer line of stitching I16 isproduced. When the needles return to the point A,

the machine operator actuates the foot pedal to cut off power to theshaft 66, and consequently 8 theshaft I82 and to raise the needles 28.The thread is then cut and the work piece is removed from the plate I2.

With respect to the cam groove I64, which .is

circumferentially formed on the underside of the first or bottom camI42, the starting point is located at I84. The cooperating cam followerI66 moves from I84 along the radius I86 as the line of stitching I88 isproduced and along the curve I88, as the work piece moves, under theneedles from B to C, the follower reaching approximately to the pointI88 coincident with the needles arriving at C. The cam follower I66moves on the radius I98, as the bar tacking I82 is produced to D,whereupon it moves along the section I92 of the cam track, as the lineof stitching I16 is formed back to A. The section I94 is provided toproduce a back stitching at point A slightly along the line I16.

With respect to the cam groove I68, which is circumferentially formed onthe upper face or surface of the second or to cam I54 adjacent themarginal edge thereof, the starting point is at I96. The complementarycam follower I18 is positioned at this point, when the cam follower I66is located at I84 on the cam groove I64. The cam follower I18 movesalong the radius I98, as the cam follower I66 moves along the radiusI86, and it moves along the French curve portion 288 of the cam grooveI68 as the cam follower I66 moves along the portion I88 of the grooveI86. The cam follower I'III is disposed along the radius 282 coincidentwith the positioning of the cam follower I66 on the radius I98 of thecam track I64 and the follower I18 follows the curve 284 in the camgroove I68, as the follower I66 follows the section I92 of the grooveI64. The juncture section 266 between the curve 284 and the startingpoint I98 corresponds to the section I84 of the cam track I64.

The second cam overlies the first cam in a fixed but adjustable mannerand the cams are held against relative movement, so that they rotatetogether in an integral manner with the radius I98 on the cam track I64overlying the radius 282. To produce other designs or to stitch a pocketon a garment, different cams will be used, having different cam tracksand being mounted relative to each other in a different manner. But theslide plate, work holder and other elements will remain the same andoperate in the same manner, as that disclosed herein. The cams I42 andI54 can be easily replaced with another set of cams by removing thesupporting plate H2 and backing the bar I28 off the rollers I26 toremove the plate I86 with the plate H2. The top cam can then bedisconnected from the bottom cam and the latter cam can then be removedfrom the flange I48.

Although the machine has been described as forming a so-called horseshoedesign it is to be noted that the symbol of the horseshoe is theexclusive trade-mark property of the assignee, and the words horseshoedesign are not to be understood as conveying a descriptive meaning, asthe improved device has been developed for the purpose of applying thetrade-mark directly to the jeans or other garments manufactured and soldby the assignee.

Thus, this invention is not limited to use only in forming the exemplarydesign but may be used, .in the afore-described manner, to form otherstitched designs and to stitch pockets or collars and the like ongarments. Therefore, the invention is not limited to the exact con- .1 estruction shown and described but numerous modifications of theprinciples of this invention can be developed, within the scope of theappended claims.

Having thus described this invention, what is claimed is:

1. For use with a sewing machine having sewing instrumentalities, meansfor movably supporting a workpiece beneath the instrumentalitiescomprising a work holding plate adapted to movably underlie the sewinginstrumentalities, a first rectilinearly reciprocating operating elementmovable longitudinally in a path trans versely of the axis of the plate,cross bars mounted on the operating element in longitudinally spacedfashion, a base member for said work holding plate, means slidablymounting the'base member between the cross bars for forced movement bythe operating element and unimpeded movement transversely the operatingelement, a second reciprocating operating element movable transverselyof the path of movement of the first operating element, guide means onthe base member connecting the base member to the second operatingelement and guiding the base member longitudinally on the secondoperating element as the base member is moved transversely thereby.

2. In a movable work holder for use with a sewing machine in supportinga work piece be neath the reciprocating needles of a sewing machine, abase for said Work holder movable axially and transversely of its axis,a first operating element, means moving said operating elementlongitudinally and in a path of movement transversely of the axis of thebase, supports mounted transversely on the opertaing element, rollers onsaid supports slidably supporting the base be" tween the supportswhereby thebase is moved tranversely of its axis by the operatingelement and is free to move axially, a second operating element, meansmoving said second operating element in a path of movement parallelingthe axis of the base simultaneously with the movement of the firstoperating element, a lateral arm on the second operating element andmeans on the base between which the arm is disposed connecting saidsecond operating element to the base so that the base is entrained forforced axial movement by the second operating element and yet is free tomove on the arm under the impetus of the first operating element.

3. In a movable work holder for use with a sewing machine in supportinga work piece beneath the reciprocating needles of a sewing machine, abase for said work holder, a first operating element, means moving saidoperating element longitudinally and in a rectilinear path of movement,supports mounted transversely on the operating element, means slidablymounting the base between the supports whereby the base is movable withthe operating element and simul taneously free to move transverselythereof, a second operating element, means moving said second operatingelement in a rectilinear path transversely of and simultaneously withthe movement of the first operating element and means connecting saidsecond operating element to the base, said last means including a barextending laterally from the second operating element and overlying thefirst operating element in parallelism therewith, rollers on the uppersurface of the base and spaced apart to receive the free end of said barand grooves formed in the l9 opposing side edges of the free end of thebar engaging the rollers.

4. The combination of claim 3, wherein said means for moving the firstoperating element and said means for moving the second operating elementincludes a pair of superimposed cams, the bottom cam having a cam trackformed on its underside, a cam follower engaged with said track andcarried by the first operating element and the upper cam having a camgroove formed on its upper side and a cam follower carried by the secondoperating element and engaged with said cam groove.

5. The combination of claim 4, wherein said cams are fixed on a driveshaft, said second operating element overlying the upper cam and havingan elon ated axial slot receiving the drive shaft.

6. The combination of claim 5, wherein a housing is provided for saidoperating elements and cams, said first operating element movinglongitudinally of the housing and said second operating element movingtranversely of the housing, means mounting said operating elements inthe housing, said housing having opposed side walls formed withelongated aligned slots receiving the base and means exteriorly of thehousing connecting the base to said work holder.

7. In a movable work holder for use with a sewing machine in supportinga work piece beneath the reciproacting needles of a sewing machine, abase plate for said holder simultaneously reoiprocable axially andtransversely of its axis, a first operating element reciprocable transversely of the axis of the base plate, means carried by said firstoperating element supporting the base plate and attached thereto andoperatively connected to said base plate in a manner so that the firstoperating element and base plate are unitary for movement transverselyof the axis of the base plate and the base plate is free to moveaxially, a second operating element reciprocable in a path parallelingthe axial movement of the base plate, and means carried by the secondoperating element and 0peratively connected to said base plate fortranslating the reciprocable movement thereof into axial reciprocationof the base plate.

8. The combination of claim 7, wherein said means carried by the firstoperating element includes companion rollers spaced apart the width ofthe base plate and engaging in grooves in the side edges of the baseplate.

9. The combination of claim '7, wherein said last named means includes abar extending laterally from the second operating element, rollers onthe base plate extending above the upper surface thereof and betweenwhich the bar is positioned permitting the base plate to be moved by thefirst operating element in its path of movement tranversely of its axis.

10. In a movable work holder for use with a sewing machine in supportinga work piece beneath the reciprocating needles of a sewing machine, abase plate for said holder simultaneously reciprocable axially andtransversely of its axis, a first operating element reciprocabletransversely of the axis of the base plate, means carried by said firstoperating element supporting the base plate and attached thereto andoperatively connected to said base plate in a manner so that the firstoperating element and base plate are unitary for movement transverselyof the axis of the base plate and the base plate is free to moveaxially, a second operating element reciprocable in a path 11 12paralleling the axial movement-0f thebase plate, References. Cited inthe file of. this patent and means carried by the second operatingel'e;- UNITED STATES PATENTS; ment and operatlvely connected to sa1dbase plate for translating the reciprocable movement there- Number NameDate of into axial reciprocation of the base plate; a 5 81,710,543 Chum1907 drive shaft, adjustable superimposed cams se- 2509369 Kramer etsept- 1952 cured on the shaft, cam followers carried by the operatingelements engaging said cams.

